Have you ever wondered which unit you should build and upgrade? Which one is worth the investment of time and resources? Considering there are typically two or three units that can fill a particular position, picking the best one is paramount to a successful military. Unfortunately there is no right answer to Hoplites vs. Steam Giants, or Paddle-Wheel-Rams vs. Fire Ships. The army and navy you recruit is based on several factors; how much time can you spend online? what is your goal of the battle? how many resources, citizens, and gold do you have at your disposal?